Across
- 5. the middle muscle/layer of the heart
- 7. the outermost muscle/layer of the heart
- 8. smallest blood vessels in the body
- 11. also known as RBC
- 13. The innermost muscle/layer of the heart, thinnest layer
- 15. also known as WBC
Down
- 1. large vein carrying deoxygenated blood to the heart
- 2. upper cavities of the heart
- 3. arteries that carry deoxygenated blood to your lungs
- 4. veins carrying oxygenated blood from your lungs to your heart
- 6. carrying deoxygenated blood from the body to the heart
- 9. carrying oxygenated blood away from the heart
- 10. the largest artery in the human body, at the top of the heart
- 12. also known as platelets
- 14. lower cavities of the heart